Chimney Crown Repair & Replacement in New Hyde Park, NY
The crown is the concrete or mortar slab that caps the top of the chimney. Freeze-thaw cycles crack it, letting water into the masonry below; small cracks can be sealed, while badly broken crowns need to be replaced.
Chimneys in New Hyde Park
New Hyde Park is mostly Capes and colonials from the 1920s through the post-war years, many with oil heat and a fireplace. These chimneys often carry two flues and need both kept clean.
About chimney crown repair & replacement
The crown is the slab at the top of a masonry chimney that sheds water away from the brick. Many crowns are built as a thin layer of mortar without an overhang, which cracks quickly in freeze-thaw winters.
Signs you need it
- Cracks in the top of the chimney
- Pieces of concrete on the roof
- Water in the firebox
- Spalling brick near the top of the chimney
How we handle it in New Hyde Park
- 1. Inspect and photograph. We look at the chimney inside and out and photograph what we find.
- 2. Clear written estimate. You get a written estimate describing the work before anything starts.
- 3. Seal or remove. Seal minor cracks, or remove a failed crown down to sound masonry.
- 4. Build a new crown. Proper slope, overhang and drip edge, with a gap around the flue.
- 5. Cap it. A cap is usually installed or reset with the new crown.
Call when you see cracks or crumbling at the top — crown problems quickly spread into the brick.
Chimney Crown Repair & Replacement in New Hyde Park: FAQ
Do you offer chimney crown repair & replacement in New Hyde Park?+
Yes. SkyFlue Chimney & Fireplace serves New Hyde Park and the rest of Nassau County. Call (934) 271-0372 or request a free estimate.
What's the difference between a chimney crown and a cap?+
The crown is the masonry slab sealing the top of the chimney. The cap is the metal cover over the flue openings.
Can a cracked crown be sealed?+
Hairline cracks can often be sealed with a flexible crown coating. Wide cracks or a crumbling crown usually need replacement.
Why do crowns crack?+
Many are built too thin or without an overhang, and freeze-thaw cycles work into small cracks.
Should I get a cap with a new crown?+
Usually yes — they work together to keep water and animals out.